Optical Coherence Tomography

Optical coherence tomography is widely applied optical imaging technique reaching micrometer resolution up to a few millimeters deep in biological tissues. Although OCT is already well established, we work on improving OCT to obtain higher quality images and extracting more information from OCT data. Together with scientific and industrial partners we work on appplications such as:

OCT rheology:

OCT can make images of fluid flow and diffusive particle motion. This information is extracted from the Doppler shift and decorrelation of the OCT signal. We work on applying this rheological imaging capability for quantitive imaging of flow and diffusion in microfluidic systems, droplets, and multi-component flows.

High-resolution high-contrast OCT:

OCT resolution is typically limited to the tens of micrometer range and contrast is mainly due to differences in scattering. To achieve higher quality images we work on optical coherence microscopy with enhanced contrast. We apply this to imaging of biological tissues and plant leaves.

Multi-scale OCT:

OCT imaging is usually limited to a limited field of view. Our interest is in extending this to large area imaging of paintings and plants while mainting high spatial resolution.